{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Despite increasing reports on nonionic contrast media - induced nephropathy ( CIN ) in hospitalized adult patients during cardiac procedures , the studies in pediatrics are limited , with even less focus on possible predisposing factors and preventive measures for patients undergoing cardiac angiography ."}
{"Disease": ["nephropathy", "CIN"], "Chemical": ["contrast media"]}